"If you get into these spaces [non-ordinary states of consciousness] at all, you must forget about them when you come back. You must forget you're omnipotent and omniscient and take the game seriously so you'll engage in sex, have children, and participate in the whole human scenario. When you come back from a deep tank session — or a coma or psychosis —there's always this extraterrestrial feeling. You have to read the directions in the glove compartment so you can run the human vehicle once more."